NGC 2143 is a magnitude +11.0 open star cluster of about 25 stars (mag 9 -13) located 2609 light-years away in the constellation Orion.
The cluster was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) reflecting telescope at Windsor Road, Slough, on the 2nd February 1831.
Right Ascension 06h 03m 07.4s, Declination +05° 43' 42"
